CN216705268U

CN216705268U - Steam heating device for pickling liquid crystal display panels

Info

Publication number: CN216705268U
Application number: CN202123344604.2U
Authority: CN
Inventors: 王军; 陶方查; 岳伟
Original assignee: Wuhu Token Sciences Co Ltd
Current assignee: Wuhu Token Sciences Co Ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-06-10
Anticipated expiration: 2031-12-28

Abstract

A steam heating device for pickling liquid crystal panels belongs to the technical field of pickling of liquid crystal panels and comprises a pickling tank, wherein a supporting frame is vertically arranged on the inner wall side of the pickling tank, a plurality of heat exchange pipelines are wound and fixed on the supporting frame at intervals from outside to inside in the circumferential direction, and inlets and outlets of the plurality of heat exchange pipelines are respectively connected with a self-locking connector.

Description

Steam heating device for pickling liquid crystal display panel

Technical Field

The utility model relates to the technical field of liquid crystal panel pickling, in particular to a steam heating device for pickling a liquid crystal panel.

Background

At present, in the process of thinning the TFT-LCD liquid crystal panel, the liquid crystal panel needs to be heated in an acid tank due to process requirements, the liquid in the acid tank is usually heated by a plastic king capillary heat exchanger, and a heating source is hot water (the hot water is heated by steam) with the temperature of more than 85 ℃. The plastic king capillary heat exchanger is vertically placed on the inner wall side of the pickling tank, hot water is pumped into the capillary of the heat exchanger, the pickling solution is rapidly and stably heated under the action of pipe wall conduction, and cooled condensate water is led out of the pickling tank body from the capillary.

The on-site used plastic king capillary heat exchanger is formed by pressing a flange joint at the end part of a tube bundle after a plurality of M6 small teflon thin tubes are closely assembled to the tube bundle. Because produce industrial salt at the pickling in-process, partial industrial salt is attached to the heat exchanger surface, influences heat exchange efficiency and product quality, needs artifical clearance crystalline solid, because the heat exchange tube in the current heat exchanger is close to, and artifical clearance is inconvenient, but also can cause the damage to the heat exchanger, has the risk that the steam that runs away influences the environment simultaneously. And link to each other heat transfer entry and the steam conduit with the heat exchanger, when linking to each other the heat transfer export of heat exchanger with the condensation duct, need use bolted connection after with the flange butt joint, the operation is wasted time and energy, and the junction leaks steam or comdenstion water easily moreover, influences heat exchange efficiency and product quality, arouses the potential safety hazard easily.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the steam heating device for pickling the liquid crystal panel, the heat exchange pipeline and the joint part of the pipeline are improved, the steam heating device is convenient to clean, mount and dismount, and the hidden quality danger and the hidden safety danger caused by damage of a heat exchanger can be effectively prevented.

In order to achieve the purpose, the technical scheme adopted by the utility model for solving the technical problems is as follows: liquid crystal display panel steam heating device for pickling, including the descaling bath, the vertical braced frame that installs of inner wall side of descaling bath, it is fixed with a plurality of heat transfer pipelines to coil along circumference outside-in interval on the braced frame, and is a plurality of the entry and the exit of heat transfer pipeline are connected with respectively from locking-type joint.

The heat exchange pipeline sets up to the PFA pipe, the internal diameter of heat exchange pipeline sets up to 12 ~ 20mm, the distance between two adjacent coiling rings of heat exchange pipeline sets up to 90 ~ 100 mm.

An installation frame is installed on the inner wall of the pickling tank through embedded bolts, and the installation frame is detachably connected with the supporting frame.

The supporting frame comprises an integrally formed main frame and a positioning frame, the heat exchange pipelines are arranged on the main frame in a winding mode, and a plurality of inlet sections and outlet sections of the heat exchange pipelines are fixed on the positioning frame.

And the inlet sections and the outlet sections of the plurality of heat exchange pipelines are respectively bound together and then are positioned and connected with the positioning frame.

The self-locking joint comprises a plurality of external threaded pipes arranged on the connecting pipeline at intervals, each end of the heat exchange pipeline is rotatably connected with a threaded cap, and the threaded caps are connected with the corresponding external threaded pipes in a threaded sealing manner.

The heat exchange pipeline is sleeved with the threaded cap, and the end part of the heat exchange pipeline is clamped with a sealing retainer ring for retaining and positioning the threaded cap along the circumferential direction.

The utility model has the beneficial effects that:

1. according to the utility model, the plurality of heat exchange pipelines are wound on the supporting frame at intervals, the heat exchange area of the whole heat exchanger can be equal to or even larger than that of the traditional heat exchanger by changing the inner diameters of the heat exchange pipelines, and the industrial salt precipitates can be cleaned more easily due to the interval arrangement of the heat exchange pipelines, so that the damage risk of manual cleaning on the heat exchanger is reduced.

2. The self-locking type heat exchange pipeline connecting device realizes the connection with the connecting pipeline through the self-locking type joints in threaded connection at the inlet and the outlet of each heat exchange pipeline, so that the heat exchange pipelines are more convenient and faster to mount and dismount, and the sealing effect is good.

In conclusion, the heat exchange pipeline and the joint part of the pipeline are improved, so that the heat exchange pipeline is convenient to clean, install and disassemble, and the quality hidden danger and the potential safety hazard caused by damage of the heat exchanger can be effectively prevented.

Drawings

The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the structure of fig. 1 in which heat exchange tubes are mounted on a support frame;

FIG. 3 is a schematic structural diagram of the self-locking type connector in FIG. 2;

the labels in the above figures are: 1. the pickling line comprises a pickling tank, 2 parts of a supporting frame, 21 parts of a main frame, 22 parts of a positioning frame, 3 parts of a heat exchange pipeline, 4 parts of a self-locking joint, 41 parts of an external thread pipe, 42 parts of a thread cap, 43 parts of a sealing retainer ring, 5 parts of a mounting frame and 6 parts of a connecting pipeline.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The specific implementation scheme of the utility model is as follows: as shown in fig. 1 and 2, a steam heating device for pickling liquid crystal panels, including descaling bath 1, vertical installing braced frame 2 in descaling bath 1's inner wall side, braced frame 2 goes up to coil along circumference outside-in interval and is fixed with a plurality of heat transfer pipeline 3, heat transfer pipeline 3's interval arrangement makes the easier clearance of industry salt precipitate, the damage risk that manual cleaning caused heat exchanger has been reduced, the entry and the exit of a plurality of heat transfer pipeline 3 are connected with respectively from locking-type joint 4, make heat transfer pipeline 3's installation and dismantlement convenient and fast more.

In particular, the heat exchange tube 3 is a PFA tube, and since the PFA tube has excellent stress cracking resistance and bending life, and can maintain strong mechanical strength and burst pressure at a high temperature, the service life of the entire heat exchanger is prolonged. This heat transfer pipeline 3's internal diameter sets up to 12 ~ 20mm, and the distance between two adjacent coiling rings of heat transfer pipeline 3 sets up to 90 ~ 100mm, makes the heat transfer area of whole heat exchanger equal to or even be greater than traditional heat exchanger, has guaranteed heat exchange efficiency, makes the industry salt precipitate clearance more easily moreover.

Specifically, the mounting frame 5 is installed on the inner wall of the pickling tank 1 through embedded bolts, and the mounting frame 5 is detachably connected with the supporting frame 2 through bolts or binding ropes, so that the supporting frame 2 is more convenient to install and detach.

Support frame 2 wherein is the integrative injection moulding of PP material, main frame 21 and positioning frame 22 including integrated into one piece, be provided with a plurality of vertically and horizontally staggered's backup pads in the main frame 21, be provided with the through-hole that makes heat transfer pipeline 3 pass in the backup pad, it becomes the heat transfer part to wind on the main frame 21 to establish replacement heat pipeline 3, the entry and the export section of fixing a plurality of heat transfer pipelines 3 on positioning frame 22 become support positioning part, the difficult problem of location of entry and the export section direct contact descaling bath 1 inner wall of heat transfer pipeline 3 has been avoided. The inlet sections and the outlet sections of the heat exchange pipelines 3 are respectively bound together and then are positioned and connected with the positioning frame 22, so that the pipeline connection is easy to distinguish, and the problem of disorder connection is avoided.

Specifically, as shown in fig. 2 and 3, the self-locking type joint 4 includes a plurality of external threaded pipes 41 arranged at intervals on a connecting pipe 6, wherein the connecting pipe 6 is a steam pipe or a condensation return pipe, a threaded cap 42 is rotatably connected to an end of each heat exchange pipe 3, the threaded cap 42 is in threaded sealing connection with the corresponding external threaded pipe 41, the pipes can be connected more conveniently and quickly by means of threaded connection, and the labor intensity of workers is reduced.

The heat exchange pipeline 3 is sleeved with a threaded cap 42, the end part of the heat exchange pipeline 3 is provided with an annular clamping groove along the circumferential direction, and a sealing check ring 43 for blocking and positioning the threaded cap 42 is clamped in the annular clamping groove, so that the threaded cap 42 can freely rotate around the heat exchange pipeline 3, after the installation is completed, the connection part of the threaded cap 42 and the heat exchange pipeline 3 can be attached and sealed due to the arrangement of the sealing check ring 43, the problems of air leakage and water leakage are avoided, and the sealing effect is improved.

In conclusion, the heat exchange pipeline and the joint part of the pipeline are improved, so that the heat exchange pipeline is convenient to clean, install and disassemble, and the hidden quality danger and the hidden safety danger caused by damage of the heat exchanger can be effectively prevented.

While the foregoing is directed to the principles of the present invention, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims

1. The utility model provides a steam heating device for pickling of liquid crystal display panel, its characterized in that, includes the descaling bath, the vertical braced frame of installing in inner wall side of descaling bath, braced frame is last to coil along circumference outside-in interval and is fixed with a plurality of heat transfer pipelines, and is a plurality of the entry and the exit of heat transfer pipeline are connected with respectively from locking-type joint.

2. The steam heating device for pickling liquid crystal panels as claimed in claim 1, wherein: the heat exchange pipeline sets up to the PFA pipe, the internal diameter of heat exchange pipeline sets up to 12 ~ 20mm, the distance between two adjacent coiling rings of heat exchange pipeline sets up to 90 ~ 100 mm.

3. The steam heating device for pickling liquid crystal panels as claimed in claim 1, wherein: an installation frame is installed on the inner wall of the pickling tank through embedded bolts, and the installation frame is detachably connected with the supporting frame.

4. The steam heating device for pickling liquid crystal panels as claimed in claim 1, wherein: the supporting frame comprises an integrally formed main frame and a positioning frame, the heat exchange pipelines are arranged on the main frame in a winding mode, and a plurality of inlet sections and outlet sections of the heat exchange pipelines are fixed on the positioning frame.

5. The steam heating device for pickling liquid crystal panels as claimed in claim 4, wherein: and the inlet sections and the outlet sections of the plurality of heat exchange pipelines are respectively bound together and then are positioned and connected with the positioning frame.

6. The steam heating apparatus for pickling liquid crystal panels as claimed in any one of claims 1 to 5, wherein: the self-locking joint comprises a plurality of external threaded pipes arranged on the connecting pipeline at intervals, each end of the heat exchange pipeline is rotatably connected with a threaded cap, and the threaded caps are connected with the corresponding external threaded pipes in a threaded sealing manner.

7. The steam heating device for pickling liquid crystal panels as claimed in claim 6, wherein: the heat exchange pipeline is sleeved with the threaded cap, and the end part of the heat exchange pipeline is clamped with a sealing retainer ring for retaining and positioning the threaded cap along the circumferential direction.